[efoods]A spate of recent deaths of New York police and fire officers who took part in the emergency operation at Ground Zero after the 9/11 attacks has heightened fears that it could be the start of a delayed epidemic of cancer-related illness.

Five firefighters and police officers, all of whom were involved in the rescue and clear-up at the site of the collapsed Twin Towers, have died of cancer in the past three months, the oldest being 44. Three died last month within a four-day period.

Those three were Robert Grossman, a Harlem-based police officer who spent several weeks at the emergency site and died of a brain tumour aged 41; fellow police officer Cory Diaz, 37; and firefighter Richard Mannetta, 44.